Definitions by Brew-no

XOMG 

A variant of ZOMG, itself derived from OMG, (an abbreviation of "Oh my God"). This is widely used whilst conversing on the internet, and is oft utilised in mild derision of users of the aformentioned phrases.

Kaeli: XOMG!
Unwitting victim: What?

XOMG by Brew-no August 27, 2005